Inventor · disambiguated record
Sandra L. Harper
Also filed as: HARPER SANDRA · HARPER SANDRA L · HARPER SANDRA LYNN
11 granted patents·245 citations·filing 1992–2004
92Inventor score
Files withPARKER HANNIFIN CORP11
Top patents by PatentIndex Score
11 records- 0180US7394244B2Through-wall position sensorPARKER HANNIFIN CORP·Filed 2004·Granted Jul 1, 2008·27 cites·21 claims
- 0280US5289692AApparatus and method for mass flow control of a working fluidPARKER HANNIFIN CORP·Filed 1993·Granted Mar 1, 1994·51 cites·14 claims
- 0369US5541405AMethod and device for continuous pattern sensing using fiber opticsPARKER HANNIFIN CORP·Filed 1994·Granted Jul 30, 1996·19 cites·4 claims
- 0469US5522231AApparatus and method for mass flow control of a working fluidPARKER HANNIFIN CORP·Filed 1995·Granted Jun 4, 1996·30 cites·5 claims
- 0568US5693935AMethod and device for continuous pattern sensing using fiber opticsPARKER HANNIFIN CORP·Filed 1996·Granted Dec 2, 1997·19 cites·10 claims
- 0664US5460349AExpansion valve control element for air conditioning systemPARKER HANNIFIN CORP·Filed 1993·Granted Oct 24, 1995·29 cites·22 claims
- 0762US5477701AApparatus and method for mass flow control of a working fluidPARKER HANNIFIN CORP·Filed 1995·Granted Dec 26, 1995·22 cites·8 claims
- 0850US5335513AApparatus and method for detecting characteristics of a working fluidPARKER HANNIFIN CORP·Filed 1993·Granted Aug 9, 1994·17 cites·20 claims
- 0949US5295656AExpansion valve for air conditioning system with proportional solenoidPARKER HANNIFIN CORP·Filed 1992·Granted Mar 22, 1994·13 cites·13 claims
- 1043US5660052AApparatus and method for detecting characteristics of a working fluidPARKER HANNIFIN CORP·Filed 1995·Granted Aug 26, 1997·15 cites·28 claims
- 1130US5390897AExpansion valve for air conditioning system with proportional solenoidPARKER HANNIFIN CORP·Filed 1993·Granted Feb 21, 1995·3 cites·17 claims
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